FORD WSL-M5G51-A3-1996 INSULATOR ELASTOMER BASED EXTRUDED PRESSURE SENSITIVE WITH POLYESTER FILM 《带聚酯薄膜的压敏挤塑弹性体基绝缘体》.pdf
《FORD WSL-M5G51-A3-1996 INSULATOR ELASTOMER BASED EXTRUDED PRESSURE SENSITIVE WITH POLYESTER FILM 《带聚酯薄膜的压敏挤塑弹性体基绝缘体》.pdf》由会员分享,可在线阅读,更多相关《FORD WSL-M5G51-A3-1996 INSULATOR ELASTOMER BASED EXTRUDED PRESSURE SENSITIVE WITH POLYESTER FILM 《带聚酯薄膜的压敏挤塑弹性体基绝缘体》.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、c-2 ENGINEERING MATERIAL SPECIFICATION 1996 08 14 1996 05 08 Material Name Specification Number Revised Added Illustration 1 6c 2, p.9 J.Spencer L.Gullen Activated J. Spencer L. Gullen INSULATOR, ELASTOMER BASED, EXTRUDED, PRESSURE SENSITIVE WITH POLYESTER FILM, COMPRESSION RES I S TANT 1. SCOPE The
2、 material defined by this specification is an extruded elastomeric based compression resistant insulator material. This material is pressure sensitive and forms an immediate bond to oily galvanized steel at room temperature. 2. APPLICATION This specification was released originally to insulate heat
3、shields and fuel tank support components on the underbody. This material can be applied in trim area or in prefabricated applications at vendor plants. It may be applied over oily galvanized, CRLC steel, zinc rich primer, and plastic substrates. It will not bond to the hot melt wax used to coat fram
4、es. Material is supplied extruded onto a polyester film which becomes a permanent component of the part. 3. REQUIREMENTS 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part producers must conform to Quality System Requirements, QS-9000. Material specification requirements are to be used for
5、initial qualification of materials. A Control Plan for ongoing production verification is required. This plan must be reviewed and approved by the relevant Ford Materials activity and/or Ford Supplier Technical Assistance (STA) prior to production parts submission. Appropriate statistical tools must
6、 be used to analyze process/product data and assure consistent processing of the materials. Part producers using this material in their products, must use Ford approved materials and must conform to a process control plan which has been approved by STA and/or the relevant Materials Activity. Date I
7、Action I Chanses WP 3948-a Page 1 of 10 c-2 ENGINEERING MATERIAL SPECIFICATION 3.2 3.3 3.4 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company, at its option, may conduct infrared and/or thermal analysis of material/parts supplied to this specification. The IR spectra and thermogra
8、ms established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. CONDITIONING AND TEST CON
9、DITIONS All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. DIMENSIONS 3.5 CONSISTENCY (ASTM D 1321, 300 g
10、tl cone) 3.5.1 As received at 25 C at 5 C at 49 C 3.5.2 Aged, 60 days at 23 C at 25 C at 5 C at 49 C As specified on engineering drawing and/or in Trim 6c Sealer Manual 3.6 SOLIDS, min, by weight (ASTM D 2834, except heat at 100 +/- 3 C in a mechanical convection oven) 7.0 - 9.0 mm 3.0 - 5.0 mm 9.5
11、- 11.5 mm 5.0 - 7.0 mm 4.0 - 6.0 mm 8.0 - 10.0 mm 99 % 3.7 ASH (Based on solids weight, max 40 % Test Method: Place the crucible containing the solids residue in a cool muffle furnace. Slowly heat to and maintain at 760 +/- 30 C for 1 h, cool in desiccator and weigh. 3.8 SPECIFIC GRAVITY (ASTM D 297
12、, Hydrostatic Method) 3.9 TENSILE STRENGTH, min ELONGATION, min 1.20 +/- 0.1 0.20 MPa 2000 % WP 3948-b Page 2 of 10 ENGINEERING MATERIAL SPECIFICATION WSL-M5G51-A3 Test Method: . Prepare specimens of the material which are 2 mm x 25 mm x 150 mm . Condition the test specimens for 2 h at 23 +/- 2 C. .
13、 Place the test specimens in the holders of a device appropriate to measure the tensile strength and extensibility of the material. Samples should be centered between the jaws of a tensile tester which are 25 mm apart at the beginning of the test. Run the test at a rate of extension of 500 mm per mi
14、nute. Extend the material until the material fails by breaking or tearing. Compute the tensile strength by dividing the load in N at the time of failure by the cross-sectional area of the specimen in m2 and multiply by 1,000,000. . Compute the elongation by measuring the displacement between the jaw
15、s in mm at the time of failure. Subtract 25 mm from this displacement and divide by 25 mm. Multiply this ratio by 100 to obtain the percent elongation. 3.10 PEEL STRENGTH 3.10.1 180 degree peel, on 0.75 mm polyester, 125 mm/minute jaw speed initial 7 days at 70 +/- 2 C 7 days salt spray, 38 +/- 2 C
16、7 days 100 % R.H., 38 +/- 2 C 600 N/m 600 N/m 600 N/m 600 N/m Test Method: . Prepare test specimens by extruding a 2 mm x 35 mm section of material onto a .O75 x 55 mm strip of polyester film. The material should be extruded so that it runs down the center of the film. Cut these extruded parts to a
17、length of 125 mm. Condition the samples so extruded for 7 days at 23 +/- 2 c. Manually peel back the material from the polyester to a distance of 75 mm from one end. WP 3948-b Page 3 of 10 ENGINEERING MATERIAL SPECIFICATION WSL-M5G51-A3 Place the polyester in one jaw of the peel tester and the mater
18、ial in the other jaw. The polyester should be held in the jaw at a point approximately 12 mm from where the polyester and material are joined. The material should be put in the jaw at a point approximately 25 mm from where the polyester and material meet. . The peel tester should be started and the
19、maximum value obtained while peeling 25 mm of material or the maximum value obtained before the material break from the polyester film shall be recorded. Compute the peel strength by dividing the maximum force recorded in N, by the width in m of the material section. 3.10.2 90 degree peel on galvani
20、zed steel, 127 mm/minute initial 14 days at 70 C 14 days, salt spray, at 38 C 14 days, 100 % R.H., at 37 C 500 N/m 1200 N/m 700 N/m 700 N/m Test Method: . Cut test specimens which are 2 mm x 22 mm x 100 mm Condition the test specimens for 24 h at 23 +/- 2 C. Prepare 4 panels of galvanized steel whic
21、h are 0.80 x 100 x 150 mm. Clean the surface by wiping with mineral spirits and allowing 10 minutes to dry. Apply 3 test specimens to each of the four panels. The length of the specimens should be parallel to the length of the panel (see illustration 1). . Immediately cover each panel with a piece o
22、f release paper and pass a 5 kg roller over each panel 6 times. When passed over the specimens, no force should be applied downward except the mass of the roller. After subjecting each panel to the specified environmental conditions, condition the panels for 24 h at 23 C. Using a chisel nose spatula
23、, manually peel back a 50 mm strip of material from each specimen on the panel. Place the panel in a fixture which will hold it firmly. Place 25 mm of the peeled back material in the jaw of the peel tester. WP 3948-b . Peel the material back at a 90 deg angle to the panel at a rate of 125 mm per min
24、ute. Page 4 of 10 c-2 ENGINEERING MATERIAL SPECIFICATION Record the maximum value obtained in Newtons while 25 mm is being peeled from the panel or the maximum value obtained before the material breaks. . Compute the peel strength by dividing the value recorded in N by the width of the specimen in m
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